Index: src/ResolvExpr/AlternativeFinder.cc
===================================================================
--- src/ResolvExpr/AlternativeFinder.cc	(revision a8706fc00f87d52e8a2088039ea7e9d0d0ba8b7c)
+++ src/ResolvExpr/AlternativeFinder.cc	(revision 96812c08a8de9308f7cd2aa6c43b95d71bf1bba1)
@@ -97,4 +97,5 @@
 		void postvisit( InitExpr * initExpr );
 		void postvisit( DeletedExpr * delExpr );
+		void postvisit( GenericExpr * genExpr );
 
 		/// Adds alternatives for anonymous members
@@ -1756,4 +1757,8 @@
 		assertf( false, "AlternativeFinder should never see a DeletedExpr." );
 	}
+
+	void AlternativeFinder::Finder::postvisit( GenericExpr * ) {
+		assertf( false, "_Generic is not yet supported." );
+	}
 } // namespace ResolvExpr